<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
            width: 90px;
            height: 90px;
            border-radius: 5px;
            background-color: pink;
            float: left;
            margin: 10px;

            display: flex;

            justify-content: center;
            align-items: center;
        }

        ul li {
            width: 20px;
            height: 20px;
            background-color: green;
            border-radius: 50%;
        }


        ul:nth-child(2) {
            justify-content: space-around;
            flex-direction: column;
        }

        ul:nth-child(3) {
            justify-content: space-around;
        }

        ul:nth-child(3) li:nth-child(1) {
            align-self: flex-start;
            margin: 5px 0;
        }

        ul:nth-child(3) li:nth-child(3) {
            align-self: flex-end;
            margin: 5px 0;
        }


        ul:nth-child(4) {
            justify-content: space-around;
        }

        ul:nth-child(4) li:nth-child(1) {
            align-self: flex-end;
            margin: 5px 0;
        }

        ul:nth-child(4) li:nth-child(3) {
            align-self: flex-start;
            margin: 5px 0;
        }

        ul:nth-child(5) {
            justify-content: space-around;
            flex-wrap: wrap;
        }

        ul:nth-child(5) li {
            margin: 10px 12.5px;
        }


        ul:nth-child(6) {
            justify-content: space-around;
            flex-wrap: wrap;
        }

        ul:nth-child(6) li {
            margin: 8px 0px;
        }

        ul:nth-child(6) li:nth-child(3) {
            margin: 0px 35px;
        }

        ul:nth-child(7) {
            justify-content: space-around;
            flex-wrap: wrap;
        }

        ul:nth-child(7) li {
            margin: 2px 10px;
        }
    </style>
</head>

<body>
    <ul>
        <li></li>
    </ul>

    <ul>
        <li></li>
        <li></li>
    </ul>

    <ul>
        <li></li>
        <li></li>
        <li></li>
    </ul>

    <ul>
        <li></li>
        <li></li>
        <li></li>
    </ul>

    <ul>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
    </ul>

    <ul>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
    </ul>

    <ul>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
    </ul>

    
</body>

</html>